missadrianlee:Reminiscing about studying for mineralogy…so glad it’s summer! Important,
missadrianlee:Reminiscing about studying for mineralogy…so glad it’s summer! Important, basic stuff. And it was fun. I remember it like it was yesterday, but my mineralogy lab was in 1973. Cleavage and analogues of cleavage become important again when selecting sand and gravel to use in concrete. -- source link